Well as stated in the subject, I am not sure what to believe as far as how much memory my system is using. I have 6gb installed in triple channel mode. In the BIOS it is seeing 4Gb only, windows says it is 4gb, CPUz says 6gb, WTF? I have shifted sticks around in triple channel and same result. Take the sticks out of triple channel and they show up in the BIOS fine. I am thinking that I have a dead memory slot...but it shows up in cpuz, I'm just a bit confused

BIOS Shot

mem4gb_2.jpg (24.73 KiB) Viewed 5043 times

CPUz and windows

mem4gb.png (94.14 KiB) Viewed 5043 times

If you have any suggestions I am all ears. I am running the latest available BIOS on the ASRock X58 Extreme3 board and the memory is a set of Corsair Dominator 1600MHz

Have you run MemTest on each stick yet? I had a very similar issue on my Rampage II Extreme where it reported 2Gb or 4Gb...sometimes 6GB after a hard reboot. I thought it was the board until I tried them in a different mobo. Ran MemTest and sure enough, one of my Dominator sticks were showing tons of errors.